Desktop
You can join a Teams meeting anytime, from any device, whether or not you have a Teams account. If you don't have an account, follow these steps to join.
Go to the meeting invite and select Click here to join the meeting.
That'll open a web page, where you'll see two choices: Download the Windows app and Join on the web instead. If you join on the web, you can use either Microsoft Edge or Google Chrome. Your browser may ask if it's okay for Teams to use your mic and camera. Be sure to allow it so you'll be seen and heard in your meeting.
Enter your name and choose your audio and video settings. If the meeting room (or another device that's connected to the meeting) is nearby, choose Audio off to avoid disrupting. Select Phone audio if you want to listen to the meeting on your mobile phone.
When you're ready, hit Join now.
If you enter the meeting lobby, wait for someone in the meeting to admit you.
Mobile
Even if you don't have a Teams account, you can still join a Teams meeting on the mobile app. Here's how:
In the meeting invite, select Click here to join the meeting.
If you don't already have the Teams mobile app, you'll be taken to your app store to download it.
Download and open the app.
If you have an Android device, open the app right from the app store page.
If you have an iOS device, tap the meeting link again to open the app.
Teams will ask if it's okay to use your mic. Be sure to allow it so others in the meeting will be able to hear you.Next, you'll be given two options for joining your meeting: Join as a guest or Sign in and join. Choose Join as a guest.
Type your name and tap Join meeting.